Let he who is without belt cast the first stone: An Egyptian protester's trousers slide down as he hurls a rock at riot police during a clash near Cairo's Tahrir Square.

Photo: Mohammed Abed, AFP/Getty Images

Let he who is without belt cast the first stone: An Egyptian...

Let he who is without belt cast the first stone: An Egyptian... Photo-4096543.55840 - SFGate

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Shredding the Needle: Stefan Hausl of Austria somersaults off a ledge of "l'Aiguille Pourrie," which translates as "Rotten Needle," during the French stage of the Freeride World Tour in Chamonix, French Alps.

A kingfisher lives up to his name in the Oderbruch swamp near Mallnow, Germany.

Photo: Patrick Pleul, AFP/Getty Images

A kingfisher lives up to his name in the Oderbruch swamp near...

A kingfisher lives up to his name in the Oderbruch swamp near... Photo-4098978.55840 - SFGate

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Peephole person: A young Pakistani girl peeks through the hole of a tattered curtain that serves as the door to her family's home in an Islamabad slum. She and her family fled Pakistan's tribal areas due to fighting between militants and the army.

Photo: Muhammed Muheisen, Associated Press

Peephole person: A young Pakistani girl peeks through the hole of a...